.boat-scroll {
  overflow: hidden;
  position: relative;
  &-content {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    overflow: auto;
    z-index: 1;
  }
  &-track {
    width: 10px;
    height: 100%;
    position: absolute;
    z-index: 2;
    top: 0;
    right: 0;
  }
  &-scrollBar {
    width: 8px;
    border-radius: 4px;
    position: absolute;
    right: 0;
    top: 0;
    background: rgba(0,0,0,0.2);
    z-index: 3;
    opacity: 0;
    transition: all 100ms linear;
    &.show {
      opacity: 1;
    }
  }
}